Lubricant cooler



18, 1933. L CLQUSE LUBR I CANT COOLER Filed Nov. 10, 1930 2 Sheets-Sheet l April 18, 1933. w. L. cLouss LUBRICANT COOLER Filed Nov. 10, 193.0 2Sheets-Sheet 2 16 ill EZ IZ WIL. 620L456 mmcost of production.

Patented Apr. 18, 1933 WILLIAM L.v CLOUSE, OFVI-TIFFIN, 'o-HIo, ASSIGNOR .TO THE! NATIONAL MACHINERY COMPANY, OF TIFFINQVOHIO I i PAT-N- oFFicE Y 7 LUBRICANT COOLER Application filed mamtaqo, 193b Seriai N o. 494,788. i

This invention relates to a 'cooler for use primarily in Connection with machines for" threading nuts and the like, although it can' obviously be combined "with other types of metal working machines requiring constant lubrication of the work and the tools acting thereon. r p Itis the present practice to direct a stream of lubricant onto'the workbeing cut and has been necessary to stop the machine until the lubricant could cool or else some cooling medium has been placed in the heated lubricant, all of which has interruptedthe operation of the machine and 1 increased the It is an object of the present invention to combine with the tapping machine or the like a mechanism for acting on the lubricant as it flows from the work so as to remove the heat units absorbed from the tools, cuttings, etc. and maintain the lubricant at proper temperature for immediate reuse.

A further object is to provide a cooling mechanism the operation of which will not be hampered by any solids or other substances mixed with the lubricant being treated.

Another object is to spread the lubricant in a novel manner during the initial stage of the cooling operation without the use of spraying'nozzles or other structures likely to become clogged.

With the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details'of construction hereinafter described and claimed, it being understood that changes in the precise embodiment ofthe invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings the pre- Y ferred form] of shown.

In said drawings 7 a Figure 1 is a.view more or less in diagram with a nut-tapping machine, I Figure 2 is a View partly in plan and partly in section of the'cooling apparatus.

Figure 3 is a section on line 3- 3,Figure Referring to the'figuresby charactersfof reference, 1 designatesa portion of'a' ma-f chine for tapping nuts or for other operav tions on metal resulting of heat by friction.

A nozzle 2 is used for directing a stream of lubricant into the machineand upon-the work-and the tools acting thereon. The luf bricant flows from the machine through 'an outlet spout 3'into a pan 4; which can bep'ro in the production vid'ed with a filtering'screen 5. v a p nozzle or spout 6 extends from 'thepan' so'that lubricant will." gravitate-I onto the blades of a distributor ofspecialconstructi'onhi The'distributor consistsof a seriesfof elongatedi blades suitably connected to a shaft 8 and disposed radiallythereof.

the invention 7 has been showing the cooling apparatus combined distributor is of any length desired and each 1 of its blades is provided with "a' central recess 9 in its freelongitudinal or'poui'ing edge, said edge being curved outwardlyffroni the recess towards the ends, of the bladef i The spout '6 is arranged to deliverfluid above the center of the vdistributor slightly in advance of thevertical plane of the axis of rotation thereof. Thus the stream of'lu bricant, in falling on the blades, will cause thedistributor to rotate like an'ov'ershot' water wheel and asfeach blade moves downa wardly underlth'e force of the; fluid,; said fluid will flow over'the edge of the blade and be spread gradually from the recess 9tow'a'rd the two ends of the blade The edges of the blades can be so shaped as to insure substantially a; uniform distribution of fluid over the entire length of the distributor so that itwill fa'll inathin'broad stream; Located beneath the distributor'isiapan 10 and interposed between theypan, and distributor are upstanding cooling plates' ll a supply of lubricant and when. pump l l is.

to the mechanism of formed with upwardly extended .corruga--.

operates to withdraw fluid therefrom and to elevate it to the nozzle 2.

' At one end of the 'flues13 is a housing 15' in which is located/a fan 16 adapted to be driven by any suitable means. In the drawings an electric motor 17 is used for this purpose, but obviously the tan can be geared if so desired.- In practice the pan lO-is provided with operated a continuous stream of lubricant is elevated to nozzle '2' and delivered into the mechanism '1. Here it will not only lubri cate the work and the tools acting thereon,

but will also absorb heat generated by fric tion. The used lubricant will be discharged from spout 3 to pan 4: where large solids 16, and as a result the heat absorbed by the lubricant While in the machine 1 will be carried ofi' andthe lubricant can be reused time and again without danger of becoming too Warm.

The apparatus described is advantageous, because. it can handle efiiciently lubricant flowing in a large stream through the machine, and, because there are no parts likely to become cloggedby solids. y

l Vhat is claimed is: u V

1. An apparatus of the class described including a receiver for lubricant, spaced cooling plates upstanding thereabove, meanslfor directing air currents between the plates, means for distributing lubricant over the plates and downwardly across and in direct contact with the air currents in the spaces between the plates, and means, including mechanism to be lubricated, for elevating lubricant from the receiver and directing it onto the distributing means.

2. An apparatus of the class described including a receiver for lubricant, spaced cooling plates upstanding thereabove, means for air cooling the plates, means for elevating lubricant from the receiver, and a distributor adapted to be actuated by the elevated lubricant, said receiver including a rotatable series of radial blades extending transversely over 7 the cooling plates, each blade having a pouring edge extending from end to end thereof provided with a recess.

the tapping machine H 3 Apparatus of the class described including a lubricant receiver, spaced corrugated cooling plates extending upwardly there- -above, means. for air cooling the plates and setting up air currents between the'plates, a distributor mounted for free rotation above and transversely of the-plates, and means for elevating lubricant fromthe receiver and directing it onto the distributor torotate the same and direct the lubricant onto, and; betweenthe plates.

4.. Apparatusof the class described including a lubricant receiver, spaced-corrugated cooling plates extending upwardly thereabove, means for air cooling the plates and setting up air currents between the plates, a

distributor mounted for .ltree rotation above.

- and transverselyof the plates, and means for; elevating lubricant from the receiverand di-' recting it onto the distributor torotate the same and direct the.lubricantnonto and be tweenthe plates.

In testimony that claim the foregoing as".

DClyOWIl, I-have hereto aifixed my signature. WILLIAM L, CLOUSE. 

